NGC 3891
| NGC 3891 | |
|---|---|
 NGC 3891 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Ursa Major |
| Right ascension | 11h 48m 03.3648s[1] |
| Declination | +30° 21′ 33.621″[1] |
| Redshift | 0.020980±0.00000661[1] |
| Heliocentric radial velocity | 6,290±2 km/s[1] |
| Distance | 330.46 ± 14.72 Mly (101.320 ± 4.514 Mpc)[1] |
| Group or cluster | Coma Cluster |
| Apparent magnitude (V) | 13.3g[1] |
| Characteristics | |
| Type | Sbc[1] |
| Size | ~221,100 ly (67.79 kpc) (estimated)[1] |
| Apparent size (V) | 1.54′ × 1.15′[1] |
| Other designations | |
| 2MASX J11480336+3021335, UGC 6772, MCG +05-28-031, PGC 36832, CGCG 157-035[1] | |
NGC 3891 is a large spiral galaxy in the constellation of Ursa Major. Its velocity with respect to the cosmic microwave background is 6,581±20 km/s, which corresponds to a Hubble distance of 316.6 ± 22.2 Mly (97.06 ± 6.80 Mpc).[1] However, 10 non-redshift measurements give a slightly farther mean distance of 330.46 ± 14.72 Mly (101.320 ± 4.514 Mpc).[2] It was discovered by German-British astronomer William Herschel on 3 February 1788.[3][4]
NGC 3891 is a LINER galaxy, i.e. a galaxy whose nucleus has an emission spectrum characterized by broad lines of weakly ionized atoms.[5][6] It is also a radio galaxy, i.e. it has giant regions of radio emission extending well beyond its visible structure.[7][6]
NGC 3891 is a member of the Coma cluster.[8][6]
Supernovae
[edit]Two supernovae have been observed in NGC 3891:
- SN 2006or (Type Ia, mag. 16.3) was discovered by Tim Puckett and A. Kroes on 18 November 2006.[9][10]
- SN 2018bdv (Type II-P, mag. 18.53) was discovered by Gaia Photometric Science Alerts on 29 April 2018.[11]
See also
[edit]References
[edit]- ^ a b c d e f g h i j k "Results for object NGC 3891". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 7 February 2026.
- ^ "Distance Results for NGC 3891". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 7 February 2026.
- ^ Herschel, William (1789). "Catalogue of a Second Thousand of New Nebulae and Clusters of Stars; with a Few Introductory Remarks on the Construction of the Heavens". Philosophical Transactions of the Royal Society of London. 79: 212–255. Bibcode:1789RSPT...79..212H. doi:10.1098/rstl.1789.0021.
- ^ Seligman, Courtney. "New General Catalogue Objects: NGC 3891". Celestial Atlas. Retrieved 7 February 2026.
- ^ Toba, Y.; Oyabu, S.; Matsuhara, H.; Malkan, M. A.; Gandhi, P.; Nakagawa, T.; Isobe, N.; Shirahata, M.; Oi, N.; Ohyama, Y.; Takita, S.; Yamauchi, C.; Yano, K. (2014). "Luminosity and Redshift Dependence of the Covering Factor of Active Galactic Nuclei viewed with WISE and Sloan Digital Sky Survey". The Astrophysical Journal. 788 (1): 45. arXiv:1404.4937. Bibcode:2014ApJ...788...45T. doi:10.1088/0004-637X/788/1/45.
- ^ a b c "NGC 3891". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 7 February 2026.
- ^ Lin, Yen-Ting; Huang, Hung-Jin; Chen, Yen-Chi (2018). "An Analysis Framework for Understanding the Origin of Nuclear Activity in Low-power Radio Galaxies". The Astronomical Journal. 155 (5): 188. arXiv:1803.02482. Bibcode:2018AJ....155..188L. doi:10.3847/1538-3881/aab5b4.
- ^ Fossati, M.; Gavazzi, G.; Savorgnan, G.; Fumagalli, M.; Boselli, A.; Gutiérrez, L.; Hernández Toledo, H.; Giovanelli, R.; Haynes, M. P. (2013). "Hα3: An Hα imaging survey of HI selected galaxies from ALFALFA. IV. Structure of galaxies in the Local and Coma superclusters". Astronomy and Astrophysics. 553: A91. arXiv:1303.0840. Bibcode:2013A&A...553A..91F. doi:10.1051/0004-6361/201220915.
- ^ Puckett, T.; Kroes, A.; Quimby, R.; Castro, F.; Joubert, N.; Li, W. (2006). "Supernovae 2006or, 2006os, 2006ot". International Astronomical Union Circular (8779): 2. Bibcode:2006IAUC.8779....2P.
- ^ "SN 2006or". Transient Name Server. IAU. Retrieved 7 February 2026.
- ^ "SN 2018bdv". Transient Name Server. IAU. Retrieved 7 February 2026.
External links
[edit]
Media related to NGC 3891 at Wikimedia Commons- NGC 3891 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
